The Wonder Girls are set to make its comeback on tv this weekend (31st May) on MBC “Music Core”. But there was a feeling of deja vu with the group’s rapper, Kim Yoo Bin being diagnosed with strained vocal chords recently.

Eldest member and rapper Kim Yoo Bin, will have to lip sync for Wonder Girls performances after being diagnosed with vocal cord lesions and spasmodic dysphonia recently at a checkup at a hospital in Kangnam, Seoul. Yoo Bin was advised to take a 4 weeks rest and get treatment for her vocal cords.

For their comeback performance on MBC “Music Core” this Saturday, they have decided to have Yoo Bin lip sync for her rapping part. This will continue until her condition improves. JYPE expressed that since end March, her condition was really bad and she barely finished the recording of the single album. Yoobin herself has been looking for ways to cure her illness but to no avail.

It would be a great pity especially as Yoo Bin with her husky voice had been assigned 15 rap lines in “So Hot”. In fact, most would agree that her rapping portion is the most awesome part in the whole song. But her health is of greater importance and we should be thinking long-term.

Since releasing their “So Hot” track on 22nd May, it has dominated online music portal sites, Melon, Cyworld, etc capturing the number 1 spot within two days.

On a happier note, Yoo Bin is officially an adult. (thanks to ahboo)

Wonder Girls will release their “So Hot” single next month on 3rd June. They will also be recording a digital single today with their producer, Park Jin Young including Asian superstar Jackie Chan, etc where all sales will go to relief efforts for the devastating 12th May Sichuan earthquake in south western China.